TitleDifficultyCompaniesVideos
Range Sum Query - ImmutableEasyamazon bloomberg facebook google microsoft palantir-technologies goldman-sachs
Contains Duplicate 2 - within k distanceEasyadobe airbnb amazon apple bloomberg google microsoft palantir-technologies
Contains Duplicate 3 - within k distance and t differenceHardadobe airbnb apple google microsoft palantir-technologies
Maximum Size Subarray Sum equals KMediumamazon facebook google microsoft palantir-technologies
Rotate n x n matrix by 90 degreesMediumadobe akuna-capital amazon apple bloomberg cisco facebook google groupon houzz lyft microsoft nvidia palantir palantir-technologies quora salesforce uber wish yandex
Max Area of Island ProblemMediumadobe affirm amazon apple bloomberg bytedance cruise-automation doordash facebook google intuit mathworks microsoft oracle palantir-technologies qualtrics twitch uber wish zillow
Maximum Subarray SumMediumadobe alibaba amazon apple asana atlassian bloomberg bytedance capital-one cisco citadel ebay expedia facebook goldman-sachs google ibm intel jpmorgan linkedin microsoft morgan-stanley nvidia oracle palantir-technologies paypal qualcomm salesforce sap two-sigma uber visa wayfair yahoo zillow
Minimum Time Difference ProblemMediumamazon palantir-technologies
Find the Celebrity ProblemMediumamazon apple facebook google linkedin microsoft palantir-technologies pinterest square uber vmware
Inorder Successor in Binary Search TreeMediumamazon bloomberg citadel facebook google microsoft palantir-technologies pocket-gems quip zillow
Contains Duplicate 1 - Check if array has duplicatesEasyadobe airbnb amazon apple bloomberg facebook microsoft oracle palantir-technologies yahoo
Flood Fill ProblemEasyamazon apple bloomberg facebook google microsoft palantir-technologies qualtrics snapchat uber vmware
Number of IslandsMediumadobe affirm alibaba amazon appdynamics apple arista-networks atlassian audible blackrock bloomberg bytedance cisco citadel citrix cohesity cruise-automation doordash ebay electronic-arts evernote expedia facebook godaddy goldman-sachs google houzz hulu jpmorgan linkedin liveramp lyft mathworks microsoft nutanix nvidia oracle palantir-technologies paypal qualtrics roblox salesforce servicenow snapchat splunk spotify square sumologic tableau twitch twitter uber visa vmware wish yahoo zenefits zulily
Merge Overlapping IntervalsMediumadobe alibaba amazon apple atlassian bloomberg bytedance cisco cohesity coupang cruise-automation dataminr doordash ebay facebook godaddy goldman-sachs google intuit linkedin microsoft netflix oracle palantir-technologies paypal pinterest postmates salesforce sap servicenow snapchat sumologic tencent twitch twitter two-sigma uber visa vmware wayfair wish yahoo yandex yelp zulily
Trapping Rain Water ProblemHardadobe affirm airbnb amazon apple audible bloomberg bytedance citadel databricks dataminr ebay electronic-arts facebook flipkart goldman-sachs google grab huawei lyft microsoft nvidia oracle palantir-technologies qualtrics salesforce servicenow snapchat tableau twitter uber visa wish yahoo yandex zenefits
Design LRU CacheMediumadobe alibaba amazon apple asana baidu bloomberg bytedance cisco citadel cloudera cruise-automation docusign doordash dropbox ebay expedia facebook godaddy goldman-sachs google groupon hbo intuit jpmorgan linkedin lyft microsoft morgan-stanley nutanix nvidia oracle palantir-technologies paypal pinterest roblox salesforce sap snapchat splunk spotify tesla tripadvisor twilio twitch twitter two-sigma uber visa vmware wish yahoo yandex zenefits zillow
Single Number 1 - All elements except one occur twiceEasyadobe airbnb amazon apple atlassian bloomberg facebook google microsoft oracle palantir-technologies tencent
Regular Expression Matching ProblemHardadobe airbnb alibaba amazon apple bloomberg bytedance coursera databricks ebay facebook flipkart google houzz lyft microsoft oracle palantir-technologies pocket-gems twitter uber zulily
UTF-8 ValidationMediumamazon apple facebook google palantir-technologies
Integer to English Words ProblemHardamazon apple barclays bloomberg capital-one citrix facebook google jpmorgan linkedin microsoft nutanix oracle palantir-technologies paypal sap splunk square tableau tesla uber visa yahoo yelp zillow